From where does the term 'Completely Knocked Down" originate?

1950

Introduction:

The term 'completely knocked down' was used to describe the vehicles that arrived for assembly in Dublin in 1950. The Volkswagen Beetles arrived in batches of 20, each accompanied by £10 worth of spare parts packed in crates in what was termed as a 'completely knocked down' (CKD) form ready to be assembled.